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Feature #16141
closedChange in the array[x,y] notation.
Status:
Closed
Assignee:
-
Target version:
-
Description
It not a bug, but it's an oddity of the language.
array_four = %w[a b c d e f g]
p array_four[1,3]
p array_four[-1,3]
p array_four[3,3]
p array_four[-3,2]
p array_four[-3, -2]
["b", "c", "d"]
["g"]
["d", "e", "f"]
["e", "f"]
nil
p array_four[-3, -2] do not follow the principal of the least surprise!
the logical output would be ["d", "e"]
The way i see this
p array_four[-3,2] # take 3 step from the end and take 2 elements incrementally
and
p array_four[-3,-2] # take 3 step from the end and take 2 elements decrementally
The change wouldn't affect the retro-compatibility of the language.
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